to the first nobel peace prize laureate and will be attended by world leaders, the president, mrs. obama, david cameron and his wife. the final details of the state funeral have not properly been worked out. it is reported to be sunday 15th, but it's not guaranteed. that will be the day hes buried in his ancestral home. it's 450 miles since johannesburg. that is the site of the - of three of his children and close family members. it's in a place like this that nelson mandela. madeba, will lie in peace forever. >> that was al jazeera's john terrett reporting. >> delegates from iran, the u.s. and five other world powers are preparing to iron out the details of a deal to monitor iran's nuclear program. talks are set for geneva, focussing on when the talks will be held. diplomats hope a short-term deal will lead to a final settlement, calming fears of a nooek lure bomb. >> as world powers prepare to sit with iran. the door is opened to selling defense systems to u.s. allies. chuck hagel says that despite the deal with iran, the country poses threats not addressed by the nuclear agreeme